Wei Pin Ang

Key Skills

Software

Appen

Data Annotation Tech

Top Subject Matter

No subject matter listed

Top Data Types

Audio

Text

Top Task Types

Audio Recording

Evaluation Rating

Prompt Response Writing SFT

Text Generation

Translation Localization

Freelancer Overview

I have hands-on experience in data labelling and AI training workflows, particularly in evaluating large language model (LLM) outputs. My experience includes assessing English-to-Chinese translations for linguistic accuracy, fluency, and cultural nuance, ensuring that the model responses align with native fluency. I’ve also contributed to prompt engineering by writing and recording AI assistant audio prompts across diverse prompt categories and a wide range of real-life human applications, tailoring the prompts to match specific use cases such as work, education, day-to-day conversations and entertainment. Beyond prompt creation, I’ve systematically rated and compared AI model responses to audio inputs using structured evaluation criteria. This involved judging models on their ability to follow instructions, deliver relevant and helpful content, without any misinformation or harmful content. These experiences give me an advantage in cross-lingual analysis, prompt design, and quality benchmarking which I believe are skills that support the development of more responsive, helpful, and human-like AI systems.

Labeling Experience

AI Trainer/Writer

Data Annotation TechAudioText GenerationPrompt Response Writing SFT

- Wrote and recorded audio prompts for AI models according to different assigned prompt categories, with with added audio interference or lexical modifications when necessary. - Wrote assistant responses to audio prompts. - Evaluated, rated and compared AI audio responses to audio prompts based on criteria including various aspects such as the human-likeness and emotional intelligence of the responses and how well the response was able to fulfill the requirements of the prompt. - Wrote detailed rationale to justify and ensure the accuracy of each evaluation.

- Wrote and recorded audio prompts for AI models according to different assigned prompt categories, with with added audio interference or lexical modifications when necessary. - Wrote assistant responses to audio prompts. - Evaluated, rated and compared AI audio responses to audio prompts based on criteria including various aspects such as the human-likeness and emotional intelligence of the responses and how well the response was able to fulfill the requirements of the prompt. - Wrote detailed rationale to justify and ensure the accuracy of each evaluation.

2025

LLM Translation Evaluator

AppenTextEvaluation Rating

- Evaluated LLM English-Mandarin translations of various texts including social media posts, advertisements and stories. - Annotated mistakes in the text translations based on the severity of mistakes, and provided ratings of the translations based on accuracy and fluency of the translations.

- Evaluated LLM English-Mandarin translations of various texts including social media posts, advertisements and stories. - Annotated mistakes in the text translations based on the severity of mistakes, and provided ratings of the translations based on accuracy and fluency of the translations.

2025 - 2025

Education

Work History